code: def testLargeCountSymbols(self):
      api_symbols = self.get_api_symbols()
      large_count = {sym for sym in api_symbols if sym.endswith("_c")}
      mpi_symbols = self.get_mod_symbols()
  
      for sym in mpi_small_count_allowed:
          self.assertIn(sym, mpi_symbols)
      mpi_symbols.difference_update(mpi_small_count_allowed)
  
      small_count = {sym[:-2] for sym in large_count}
      bad_symbols = set.intersection(small_count, mpi_symbols)
      self.assertFalse(bad_symbols)
  
file_path: mpi4py/test/test_mpiapi.py
imports: from mpi4py import MPI
  import mpiunittest
  import os, re
  import subprocess
  import shutil
label_desc: Use image node_id 3 for calling the TestMPIAPI obj's underlying member method code with example usage: obj.testLargeCountSymbols() without return types